Fields Laboratories holds a valuable patent (No. 758-6002-1A) on a precipitator that prevents certain types of air pollution. Fields does not manufacture or sell the products and processes it develops. Instead, it conducts research and develops products and processes which it patents, and then assigns the patents to manufacturers on a royalty basis. Occasionally it sells a patent. The history of Fields patent number 758-6002-1A is as follows Activity Date Cost 2008-2009 Research conducted to develop precipitator $382,000 89,000 Jan. 2010 Design and construction of a prototype March 2010 Testing of models 40,600 Jan. 2011 Fees paid engineers and lawyers to prepare patent application; 52,700 patent granted June 30, 2011 Nov. 2012 Engineering activity necessary to advance the design of the 84,500 precipitator to the manufacturing stage 40,600 Dec. 2013 Legal fees paid to successfully defend precipitator patent 41,600 April 2014Research aimed at modifying the design of the patented precipitator uly 2018 Legal fees paid in unsuccessful patent infringement suit against a 36,000 competitor Fields assumed a useful life of 17 years when it received the initial precipitator patent. On January 1, 2016, it revised its useful life estimate downward to 5 remaining years. Amortization is computed for a full year if the cost is incurred prior to July 1, and no amortization for the year if the cost is incurred after June 30. The company's year ends December 31 Compute the carrying value of patent No. 758-6002-1A on each of the following dates: Compute the carrying value of patent No. 758-6002-1A on each of the following dates: (a) December 31, 2011 (b) December 31, 2015 s (c) December 31, 2018